Every Friday night observant Jews bless their sons by saying, "may you be like Manasseh and Ephraim," the two sons of the biblical Joseph, who were the first Jews, born outside of the Holy Land. The blessing expresses the hope that, just like Joseph's sons, today's Jewish sons will hold fast to their religion despite the fact they live in the diaspora. Manasseh and Ephraim are two of the famous lost ten tribes, who were carted away into exile more than 2,500 years ago. Descendants of the tribe of Manasseh have been found living in India, and many of them...